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Inlet fluid flow and impingement angle control

A technology of angle control and flow control, applied in the direction of engine components, machines/engines, jet propulsion devices, etc., can solve unrealistic, uneconomical technical, difficult and other problems

Inactive Publication Date: 2013-04-03
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Retrofitting existing IGV-based turbine systems to have VGVs is impractical, uneconomical and technically difficult

Method used

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  • Inlet fluid flow and impingement angle control
  • Inlet fluid flow and impingement angle control
  • Inlet fluid flow and impingement angle control

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Embodiment Construction

[0017] Described herein are novel apparatus, systems, and methods for controlling the fluid flow rate and impingement angle of fluid flow entering a compressor of a gas turbine system. For ease of reference, fluid flow velocity and impingement angle will be referred to as fluid flow parameters. The novel inventive aspect increases operational flexibility due at least in part to the ability to independently control each of the provided fluid flow parameters.

[0018] figure 1 An example gas turbine system 100 is shown in accordance with aspects of the invention. As can be seen, the system 100 includes a combustor 130 that generates high energy gas to drive a gas turbine 140 that can be used to drive a load 160 to perform useful work, such as generating electricity. Turbine 140 also drives shaft 150 , which is operatively coupled to compressor 110 , which compresses and provides an oxidant-containing compressed fluid (eg, air) to combustor 130 . The system 100 includes a fuel...

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PUM

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Abstract

The invention relates to an inlet fluid flow and impingement angle control. A compressor of a gas turbine system comprises a fluid flow control device and an impingement angle control device downstream of the fluid flow control device. The fluid flow control device controls a fluid flow rate of fluid entering an inlet of the compressor, and the impingement angle control device controls an impingement angle of the fluid flowing to rotor blades in the compressor. The fluid flow control device and the impingement angle control device are independently operable.

Description

technical field [0001] One or more aspects of the invention relate to controlling an inlet fluid flow and an impingement angle of the fluid flow in a gas turbine. Background technique [0002] In many conventional gas turbines, inlet guide vanes (IGVs) are the primary mechanism for flow control. The IGV serves two main purposes, controlling the air flow rate into the compressor and setting the impingement angle of the air entering the compressor. In many cases, these two purposes cannot be optimally achieved using IGV alone. [0003] More recently, variable guide vanes (VGV) including multiple stages of vanes can be used to set flow velocity and impingement angle to some extent. However, VGV is more or less limited to new units. Retrofitting existing IGV-based turbine systems with VGVs is impractical, uneconomical and technically difficult. Contents of the invention [0004] A non-limiting aspect of the invention relates to a compressor of a gas turbine system arranged...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02C9/20
CPCF02C7/055F02C9/20F02C7/042F01D17/141
Inventor S.W.蒂勒里
Owner GENERAL ELECTRIC CO